Optical absorption spectra of palladium doped gold cluster cations

Journal Article · Wed Jan 21 00:00:00 EST 2015 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4906072· OSTI ID:22416017

Kaydashev, Vladimir E.; Janssens, Ewald; Lievens, Peter ^[1]

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1. Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200d – Box 2414, B-3001 Leuven (Belgium)

Photoabsorption spectra of gas phase Au{sub n}{sup +} and Au{sub n−1}Pd{sup +} (13 ≤ n ≤ 20) clusters were measured using mass spectrometric recording of wavelength dependent Xe messenger atom photodetachment in the 1.9–3.4 eV photon energy range. Pure cationic gold clusters consisting of 15, 17, and 20 atoms have a higher integrated optical absorption cross section than the neighboring sizes. It is shown that the total optical absorption cross section increases with size and that palladium doping strongly reduces this cross section for all investigated sizes and in particular for n = 14–17 and 20. The largest reduction of optical absorption upon Pd doping is observed for n = 15.

• OSTI ID: 22416017
• Journal Information: Journal of Chemical Physics, Vol. 142, Issue 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ATOMIC CLUSTERS
ATOMS
CATIONS
CROSS SECTIONS
DOPED MATERIALS
EV RANGE
GOLD
MASS SPECTROSCOPY
NITROGEN 14
NITROGEN 15
NITROGEN IONS
PALLADIUM
PHOTONS